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16056940 = 2254211907
BaseRepresentation
bin111101010000…
…001001101100
31010012202222111
4331100021230
513102310230
61332053404
7253324144
oct75201154
933182874
1016056940
1190778a9
125464264
133432763
1421bd924
15162292a
hexf5026c

16056940 has 24 divisors (see below), whose sum is σ = 33817392. Its totient is φ = 6404160.

The previous prime is 16056913. The next prime is 16056941. The reversal of 16056940 is 4965061.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (16056941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7467 + ... + 9373.

It is an arithmetic number, because the mean of its divisors is an integer number (1409058).

Almost surely, 216056940 is an apocalyptic number.

16056940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16056940 is an abundant number, since it is smaller than the sum of its proper divisors (17760452).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16056940 is a wasteful number, since it uses less digits than its factorization.

16056940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2337 (or 2335 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 16056940 is about 4007.1111788918. Note that the first 4 decimals coincide. The cubic root of 16056940 is about 252.2827723580.

The spelling of 16056940 in words is "sixteen million, fifty-six thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 421 842 1684 1907 2105 3814 4210 7628 8420 9535 19070 38140 802847 1605694 3211388 4014235 8028470 16056940